Home / 1,277,437.20-1,916,080.57-478,651.87

Finding the Fourth Proportional to 1,277,437.20, 1,916,080.57 and 478,651.87

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Solution

The fourth proportional to 1,277,437.20, 1,916,080.57 and 478,651.87 is: 717,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,437.20 : 1,916,080.57 = 478,651.87 : x
  2. Step 2: Convert to fraction form
    1,277,437.20/1,916,080.57 = 478,651.87/x
  3. Step 3: Cross multiply
    1,277,437.20x = 1,916,080.57 × 478,651.87
  4. Step 4: Simplify right side
    1,277,437.20x = 917,135,547,901.17
  5. Step 5: Solve for x
    x = 917,135,547,901.17/1,277,437.20
  6. Step 6: Final answer
    x = 717,949.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.